Yong Heng

Most guys use a 5 gallon bucket. How far up they fill it depends on if you are filling an SCBA tank or filling a gun directly. I was at the range outside a couple of days ago filling directly to my guns and one gallon was fine since it was 45 degrees. In the summer if you are filling a large SCBA then the bucket should have plenty of ice in it and it should be quite full.